ESB-2018.0492 - [Debian] quagga: Multiple vulnerabilities 2018-02-19

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0492
                          quagga security updates
                             19 February 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           quagga
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
                   Access Confidential Data        -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5381 CVE-2018-5380 CVE-2018-5379
                   CVE-2018-5378  

Reference:         ESB-2018.0482
                   ESB-2018.0481

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/02/msg00021.html

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Package        : quagga
Version        : 0.99.22.4-1+wheezy3+deb7u3
CVE ID         : CVE-2018-5379 CVE-2018-5380 CVE-2018-5381


Several vulnerabilities have been discovered in Quagga, a routing
daemon. The Common Vulnerabilities and Exposures project identifies the
following issues:

CVE-2018-5378

     It was discovered that the Quagga BGP daemon, bgpd, does not
     properly bounds check data sent with a NOTIFY to a peer, if an
     attribute length is invalid. A configured BGP peer can take
     advantage of this bug to read memory from the bgpd process or cause
     a denial of service (daemon crash).

     https://www.quagga.net/security/Quagga-2018-0543.txt

CVE-2018-5379

     It was discovered that the Quagga BGP daemon, bgpd, can double-free
     memory when processing certain forms of UPDATE message, containing
     cluster-list and/or unknown attributes, resulting in a denial of
     service (bgpd daemon crash).

     https://www.quagga.net/security/Quagga-2018-1114.txt

CVE-2018-5380

     It was discovered that the Quagga BGP daemon, bgpd, does not
     properly handle internal BGP code-to-string conversion tables.

     https://www.quagga.net/security/Quagga-2018-1550.txt

CVE-2018-5381

     It was discovered that the Quagga BGP daemon, bgpd, can enter an
     infinite loop if sent an invalid OPEN message by a configured peer.
     A configured peer can take advantage of this flaw to cause a denial
     of service (bgpd daemon not responding to any other events; BGP
     sessions will drop and not be reestablished; unresponsive CLI
     interface).

     https://www.quagga.net/security/Quagga-2018-1975.txt


For Debian 7 "Wheezy", these problems have been fixed in version
0.99.22.4-1+wheezy3+deb7u3.

We recommend that you upgrade your quagga packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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